Thunder in the Valley is back at WVSO on July 20th for one of the biggest open wheel racing events in the Northwest!! The Granite Super Sprints will be in action as the fastest cars of the year visit WVSO. Also joining them will be the Northwest Focus Midgets hitting the asphalt, with the West Coast Vintage Racers and for the first time ever the Ernie Richardson Mini Stock Invite. Big weekend of racing!!